Page 38 - Read Online

Page 12 of 25 Liu et al. Soft Sci. 2025, 5, 7 https://dx.doi.org/10.20517/ss.2024.69

Figure 6. The morphology, fabrication method and EMW absorption mechanism of PTh-based materials. (A) Morphology, 3D plots of
[7]
RL and EMW absorption mechanism of CoSe @PTh [27] ; (B) The fabrication and EMW absorption mechanism of MoS @PEDOT/rGO ;
2
2
(C) The fabrication, bending and rolling states, and EMW absorption mechanism of NCNFs/PEDOT [83] . EMW: Electromagnetic wave;
PTh: polythiophene; RL: reflection loss; PEDOT: poly(3,4-ethylenedioxythiophene); rGO: reduced graphene oxide.
was added to the composite with dual 3D conductive networks, the RL reached -66.9 dB at 2.6 mm. The
EAB reached 6.72 GHz (9.6-16.32 GHz) at 2.7 mm with 5 wt% of filler, which was ascribed to the interfacial
polarization between NCNFs and PEDOT, the conduction loss, and dipole polarization result from N
doping and defects in graphite [Figure 6C] .
[83]

PDA
Polydopamine (PDA) often acts as a component to synthesize multi-component EMW absorbing
composites. Its functional groups such as -NH and catechol facilitate the formation of the inorganic-
2
organic core/shell structure with desired electron-hole separation efficiency [84,85] . Moreover, the PDA with
N-doped graphene structure has electrical conductivity, and the pyrolyzed PDA has excellent conductivity
similar to N-doped GO. Thus, it is anticipated that the pyrolyzed PDA will balance the mechanical and
electrical performances of composites with a broad EAB .
[86]